Appropriate Model: Assumptions Hypothesis Test (to check the assumption) Remedy in case of violation “Independence” (random pattern) – Runs test– Bartlett’s– test LBQ’s – Gapping– Batching– (Linear) regression– Time Series (ARIMA) Normal Distribution Normality test Transform Data Batching: -> DEF: A second approach to “remove” the autocorrelation is batching: ⚠PROBLEM: define an appropriate value of […]
Remedy in case of violation Leggi tutto »
Appropriate Model: Assumptions Hypothesis Test (to check the assumption) Remedy in case of violation “Independence” (random pattern) – Runs test – Bartlett’s – test LBQ’s – Gapping – Batching – (Linear) regression – Time Series (ARIMA) Normal Distribution Normality test Transform Data Runs Test: -> OBJ: understand if data are random. -> DEF: the test
Hypothesis Test (to check the assumption) Leggi tutto »
Process: -> DEF: Any collection of activities to achieve some results, typically creating added value for the customer -> Most processes (e.g., purchasing or product design) are cross-functional, spanning various functions areas and organizational charts 📌Customers/users are 5 times more likely to abandon a company for its poor business processes than for its poor product
Measurement System Introduction: Leggi tutto »
-> DEF 1: Capability to satisfy (expressed nd unexpressed) customer needs -> DEF 2: all information affecting the customer satisfaction The 4 Vs: VOLUME -> DEF: amount of data generated every second Data at Rest VELOCITY -> DEF: speed at which new data is generated and the speed at which data moves around Data in
